This fascinating story has many aspects from which each submitter selects his preferred without considering how each part reflects the whole;
The salient questions seem to be;
Why was this aircraft released for service in an operational situation when the test system doubted it's fitness
Why was this aircraft selected for this mission in questionable circumstances
Why did it depart with marginal; weather on route
Why did the pilots enter cloud when approaching high ground at a coastline
Why did they fly at right angles to that coast instead of a lesser angle
Why did the pilots continue in cloud below safety height
I had previously been at Aldergrove as a Canberra tp on the MU and knew little about the helicopter activities but from what I could see there was a blurring between operational missions where lives (squaddies) were at stake and other trips